5 |Design Review
Beyond determining specifications, evaluation criteria and achievement levels affecting product quality such as reliability, durability and safety standards must be achieved in mass-production models. Conventional model quality issue data is also shared among the design team. Verification processes for mass production are conducted repeatedly. Detailed goals toward mass production are reached by checking applicable laws and regulations for each country and assessing prevailing environmental measures and confirming costs. Hand-made engineering samples (ESs) undergo various performance/quality verification steps such as thermal conduction analysis, acceleration testing, durability and vibration testing, providing the team with points to be improved upon for mass production. The compressors on the refrigerated engineering samples are removed after running in extreme environments for an extended period of time so that wear patterns of the main components can be verified in detail.
If the design team is not satisfied that the product meets our high quality standards, another engineering sample is created and verified through the aforementioned process.
This process will be repeated until our strict quality standards are met. This extreme process can delay the appearance of our products into a rapidly changing market, however we believe that quality cannot be compromised. "ESs" are also used to clarify requirements for factory mass production teams to assess the readiness of manufacturing equipment, jig tooling, construction methods and related matters in planning form a new process flow. By planning, quality issues are less likely to appear during actual mass production. In parallel to the development of the engineering standards, our software development team decides on systems design, determines user interface specifications, and conducts repeating basic operational and comprehensive control testing. The entire development strategy culminates concludes in completing the DR (design review) process where new product specifications are finalized, production of PR (Pilot Run) models on mass production are performed. Once again, product designs, manufacturing processes and software controls are verified.